Click image above for directions from Mapquest.com. From I-172, exit at the Columbus Road Exit (15) which is approximately1/4 mile north of Broadway (Route 104) and turn West (Left if you were going North on I-72, right if you were going South on I-72). Proceed approximately 1/4 mile on Columbus Road to a stop sign that is at the intersection of Wismann Lane and Columbus Road.
Proceed straight for approximately1/8 mile where you will see signs on the right side of the road that indicate that you should turn right for the U.S. Postal Annex and ISS. After you turn right, the Postal Annex is first on your right side. ISS will be next on your right.